68 PH^DBOMUS. 



under sides) with a dense pubescence : from the centre of the third 

 proceeds the base of the ultimate joint, which is long, attenuated, 

 slightly inflected, and gradually dilated into a globular inflation com- 

 pletely concealing from above the apical claw ; this claw is bifid, being 

 armed at the base of its inner surface with a small tooth-like projection. 



This genus approaches, in the form of its thorax, to Tetragonotes 

 and Octogonotes : from the latter it is separated at once by the elongated 

 form of its palpi ; from the former it abundantly differs in its trans- 

 verse and more distinctly hexagonal form of thorax. 



The parallel and depressed form of Phcedromus abundantly separates 

 it from all other allied genera. 



1. Phaedromus Waterhousii. (Tab. III. fig. 1.) 



P. oblongo-ovatus, depressus, parallelus, impubescens, niger ; caplte 

 transverso, depresso, inter oculos transverse foveolato, tenue punc- 

 tato, nigro ; thorace transverso, ad latera angulato, impunetato, 

 fiavo, glabro ; elytris depresses, parallelis, punctato-striatis ; 

 antennis rohistis, siibincrassatis, nigris ; pedibus jlavo-fuscis, 

 femoribus anticis flavis, tarsisque posterloribus rufo-fuscis. 



Long. corp. 3 lin., lat. 1 lin. 



Oblong-ovate, depressed, parallel, impubescent, black, shining. 



Head transverse, very slightly produced, and depressed almost at 



right angles to the plane of the thorax ; immediately above the base 



of the antennae is a V-shaped carination, extending obliquely towards 



the inner margin of the eyes, and containing within it (when viewed 



under a high magnifying power) a minute longitudinal fovea, which 



connects it with a broad transverse and tolerably distinct depression 



extending between the upper margins of the eyes ; eyes large and 



prominent, extending laterally beyond the anterior angle of the 



thorax ; the surface finely punctate, glabrous, black. Tliorax broader 



than the head, transverse, the anterior angles obsolete, but subacute ; 



the sides (which are submarginate) are produced laterally into a 



distinct and prominent angle ; behind this angle, which is antemedial, 



the lateral margins slightly approach one another towards the base ; 



at the base is a broad but very shallow transverse depression, which 



extends obliquely upwards towards the anterior angles ; the surface 



is impunctate and glabrous, of a flavous colour. Scutellwm small, 



fuscous-black. Elytra slightly broader than the thorax, depressed, 



parallel, and rounded at the apex, punctate-striate, the striae being 



subobsolete ; at the shoulders (between the fifth and seventh striae) 



is a longitudinal depression; at the apex both the striae and the 



punctures are obsolete. Antenna? robust, subincrassated near the 



